Bindings are represented by a connecting line between the properties.
Procedure
In the Form Designer canvas or Outline view, select the target element.
Go to the
Mappings
tab in the Properties view of the selected element.
Note: If you are adding a binding to a grid pane control, make sure the
Visible property is enabled.
Drag the property of a component, parameter or data field from the source tree and drop it over the property of a component in the target tree to which you want to bind it.
You can also create a binding in the opposite direction, that is from the target tree to the source tree.